How much would it slow you down if you were required to get work done on a clean install of your OS, assuming you have your compilers/interpreters available, using a plain, unconfigured text editor and an uncustomized shell? Would your first step have to be setting things up to your preferences or could you sit down accomplish a moderately complex task in a reasonable time without it?

No more squiggly lines...

cover image of Windows Notepad used with permission from Microsoft